Back strap massage sandal



FIG. 1 is a perspective view of a back strap massage sandal showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation is a view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a left-side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a perspective view of the back strap massage sandal, showing the footbed alone and the upper sandal straps removed for clarity of disclosure. 

CLAIM I claim the ornamental design for a back strap massage sandal, as shown and described. 